Tuesday 22 September 2026
Trading day 2026-09-22
NEM average price reaches $66.8/MWh as NSW averages $88.6/MWh
NSW recorded the highest average price of $88.6/MWh, while SA had the lowest at $60.1/MWh. QLD registered 1.5 hours of negative prices, reaching a minimum of -$7.1/MWh at 13:30. SA and VIC each recorded 0.8 hours of negative prices.
NSW demand peaked at 9482 MW at 18:25, and QLD demand reached 7574 MW at 17:55. Coal accounted for 45.3 per cent of the generation mix, followed by wind at 16.1 per cent and rooftop solar at 15.9 per cent. Batteries discharged 17,942 MWh with a net position of -3075 MWh.
Total FCAS costs were low, with the highest being $40,308 for raise regulation. NEM emissions totalled 291,631 tonnes of carbon dioxide, 7.0 per cent above the same weekday last week.
AEMO's notice at 13:33 stated a reserve notice for MT PASA. AEMO's notice at 14:17 stated a foreseeable intervention in the SA region. AEMO's notice at 14:47 stated an update to the foreseeable intervention. AEMO's notice at 17:00 stated a direction in the SA region to AGL SA Generation.
Today · Pre-dispatch forecasts show QLD reaching $319.04/MWh at 19:30 and SA reaching $145.0/MWh at 18:30.
In context · The NEM average price of $66.8/MWh was $21.8/MWh above the seven-day average, ranking first for the week. It was also higher than the $33.0/MWh average recorded on the same weekday last week.
Prices
Trading day · 04:00 → 04:00 AEST · 30-min average
| Region | Avg | VWAP | Min | Max | Neg | Cap |
|---|---|---|---|---|---|---|
| NSW | $89 | $89 | $5 | $133 | 0 | 0 |
| QLD | $63 | $69 | -$7 | $117 | 18 | 0 |
| SA | $60 | $80 | -$4 | $116 | 10 | 0 |
| VIC | $64 | $72 | -$5 | $119 | 10 | 0 |
| TAS | $64 | $67 | $0 | $320 | 0 | 0 |
Min · Max are 5-minute dispatch extremes; the price chart plots 30-minute averages, so its peak reads lower.
Demand
FCAS
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $3,467 | 0 | $16 | 22 Sept, 16:05 |
| LOWERREG | $1,898 | 0 | $5 | 22 Sept, 14:25 |
| LOWER60SEC | $176 | 0 | $1 | 22 Sept, 13:30 |
| LOWER5MIN | $170 | 0 | $2 | 22 Sept, 14:50 |
| RAISE6SEC | $91 | 0 | $0 | 23 Sept, 00:30 |
| RAISE60SEC | $80 | 0 | $0 | 22 Sept, 07:15 |
| LOWER6SEC | $68 | 0 | $0 | 22 Sept, 13:30 |
| RAISE5MIN | $33 | 0 | $0 | 22 Sept, 04:05 |
| Total | $5,982 | |||
Cost = NSW RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $10,460 | 0 | $16 | 22 Sept, 16:05 |
| LOWERREG | $5,674 | 0 | $5 | 22 Sept, 14:25 |
| LOWER60SEC | $341 | 0 | $1 | 22 Sept, 13:30 |
| RAISE6SEC | $265 | 0 | $0 | 23 Sept, 00:30 |
| LOWER5MIN | $205 | 0 | $2 | 22 Sept, 14:50 |
| RAISE60SEC | $198 | 0 | $0 | 22 Sept, 07:15 |
| LOWER6SEC | $90 | 0 | $0 | 22 Sept, 13:30 |
| RAISE5MIN | $47 | 0 | $0 | 22 Sept, 04:05 |
| Total | $17,278 | |||
Cost = QLD RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $9,315 | 0 | $16 | 22 Sept, 16:05 |
| LOWERREG | $2,217 | 0 | $5 | 22 Sept, 14:25 |
| LOWER60SEC | $557 | 0 | $1 | 22 Sept, 13:30 |
| LOWER5MIN | $340 | 0 | $2 | 22 Sept, 14:50 |
| RAISE6SEC | $198 | 0 | $0 | 23 Sept, 00:30 |
| LOWER6SEC | $195 | 0 | $0 | 22 Sept, 13:30 |
| RAISE60SEC | $193 | 0 | $0 | 22 Sept, 07:15 |
| RAISE5MIN | $85 | 0 | $0 | 22 Sept, 04:05 |
| Total | $13,100 | |||
Cost = VIC RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $2,914 | 0 | $16 | 22 Sept, 16:05 |
| LOWERREG | $2,376 | 0 | $5 | 22 Sept, 14:25 |
| LOWER60SEC | $264 | 0 | $1 | 22 Sept, 13:30 |
| LOWER5MIN | $228 | 0 | $2 | 22 Sept, 14:50 |
| RAISE6SEC | $183 | 0 | $0 | 23 Sept, 00:30 |
| RAISE60SEC | $161 | 0 | $0 | 22 Sept, 07:15 |
| LOWER6SEC | $104 | 0 | $0 | 22 Sept, 13:30 |
| RAISE5MIN | $45 | 0 | $0 | 22 Sept, 04:05 |
| Total | $6,275 | |||
Cost = SA RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $14,152 | 0 | $241 | 22 Sept, 06:20 |
| RAISE6SEC | $8,249 | 0 | $122 | 22 Sept, 07:10 |
| LOWERREG | $5,516 | 0 | $40 | 22 Sept, 09:25 |
| RAISE60SEC | $3,627 | 0 | $239 | 22 Sept, 06:20 |
| LOWER60SEC | $178 | 0 | $1 | 22 Sept, 13:30 |
| LOWER6SEC | $150 | 0 | $0 | 22 Sept, 13:30 |
| RAISE5MIN | $40 | 0 | $0 | 22 Sept, 04:40 |
| LOWER5MIN | $8 | 0 | $2 | 22 Sept, 15:10 |
| Total | $31,921 | |||
Cost = TAS RRP × cleared MW per 5-min interval.
Battery dispatch
Peak moment
Fleet discharged 1,563 MW at 19:00 as NSW spot hit $102/MWh.
Peak moment
Fleet discharged 1,315 MW at 18:30 as QLD spot hit $100/MWh.
Peak moment
Fleet discharged 739 MW at 19:00 as VIC spot hit $107/MWh.
Peak moment
Fleet discharged 461 MW at 19:00 as SA spot hit $106/MWh.
Peak moment
Fleet discharged 3,976 MW at 18:30 as TAS spot hit $105/MWh.
Fleet net dispatch · spot-price overlay · 30-min average
Regional dispatch ranking
| Region | Discharged | Net |
|---|---|---|
#1NSW | 7,483MWh | -1,718 |
#2QLD | 4,991MWh | -1,159 |
#3VIC | 3,539MWh | -283 |
#4SA | 1,928MWh | +85 |
Generation Mix
- Coal47.8% · 99.2 GWh
- Gas2.3% · 4.7 GWh
- Hydro4.5% · 9.4 GWh
- Wind18.0% · 37.2 GWh
- Solar (utility)14.3% · 29.6 GWh
- Solar (rooftop)9.5% · 19.7 GWh
- Battery3.6% · 7.5 GWh
- Coal51.3% · 103.4 GWh
- Gas3.0% · 6.1 GWh
- Hydro1.8% · 3.6 GWh
- Wind10.9% · 22.1 GWh
- Solar (utility)11.7% · 23.5 GWh
- Solar (rooftop)18.8% · 37.8 GWh
- Battery2.5% · 5.0 GWh
- Coal55.7% · 85.1 GWh
- Gas2.9% · 4.5 GWh
- Hydro1.4% · 2.2 GWh
- Wind14.1% · 21.6 GWh
- Solar (utility)5.3% · 8.0 GWh
- Solar (rooftop)18.2% · 27.7 GWh
- Battery2.3% · 3.5 GWh
- Gas16.9% · 7.8 GWh
- Wind41.7% · 19.3 GWh
- Solar (utility)7.1% · 3.3 GWh
- Solar (rooftop)30.0% · 13.8 GWh
- Battery4.2% · 1.9 GWh
- Other0.2% · 0.1 GWh
- Gas14.1% · 3.9 GWh
- Hydro72.2% · 20.1 GWh
- Wind7.1% · 2.0 GWh
- Solar (rooftop)6.5% · 1.8 GWh
Renewables
- NSW 46.0%
- VIC 40.4%
- QLD 50.3%
- SA 92.3%
- TAS 79.7%
Interconnectors
| Region (proxy) | Net flow | Direction changes | Hours at limit |
|---|---|---|---|
| N-Q-MNSP1 | +32.8 GWh | 0 | — |
| NSW1-QLD1 | −25.2 GWh | 6 | — |
| VIC1-NSW1 | −10.9 GWh | 12 | — |
| V-SA | +9.8 GWh | 16 | — |
| T-V-MNSP1 | −3.6 GWh | 3 | — |
Per-region net of NETINTERCHANGE proxied to a representative interconnector. Full per-interconnector decomposition + hours-at-limit needs DINTERCONNECTOR parsing (follow-up).
Emissions
| NSW | 88.8k tCO₂ | 0.420 tCO₂/MWh |
| QLD | 93.4k tCO₂ | 0.457 tCO₂/MWh |
| SA | 3.8k tCO₂ | 0.080 tCO₂/MWh |
| VIC | 103.4k tCO₂ | 0.673 tCO₂/MWh |
| TAS | 2.3k tCO₂ | 0.086 tCO₂/MWh |